import java.util.Scanner;

/**
 * @author vivi
 * @description
 * @date 2024/5/25
 */
public class demo3 {
    public static void main (String[] args) {
        Scanner scanner = new Scanner(System.in);
        char[] a = scanner.next().toCharArray();
        char[] b = scanner.next().toCharArray();
        int lenA = a.length, lenB = b.length;


    }
}
